Paccar MX 12.9 L Diesel 455 hp Engine, 2012 US EPA Label, Requires Diesel Exhaust Fluid, 18177 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller 10-Speed Manual Transmission, 12000 lb Front Axle, 38000 lb Rears, Dana DSP40 Drive Axles, 3.55:1 Axle Ratio, 50000 lb GVWR, Air Ride Cab, Aluminum Outer Wheels, 11R22.5, Flex Air Air Ride Suspension, 228 in Wheelbase, PTO, Wet Kit, Air Sliding 5th Wheel, Headache Rack, Dual Fuel Tanks